/ Thesaurus / S Synonyms of sea lion Find synonyms for: Noun1. sea lion, eared sealusage: any of several large eared seals of the northern Pacific related to fur seals but lacking their valuable coatWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language